- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄223353 > ASDL-4860-C22 (LITE-ON ELECTRONICS INC) PDF資料下載
參數(shù)資料
| 型號： | ASDL-4860-C22 |
| 廠商： | LITE-ON ELECTRONICS INC |
| 元件分類： | 紅外LED |
| 中文描述： | 1 ELEMENT, INFRARED LED, 850 nm |
| 封裝： | ROHS COMPLIANT, SURFACE MOUNT PACKAGE-2 |
| 文件頁數(shù)： | 5/6頁 |
| 文件大小： | 176K |
| 代理商： | ASDL-4860-C22 |
5
50
100
150
200
250
300
t-TIME
(SECONDS)
25
80
120
150
180
200
230
255
0
T-
TEMPERATURE
(°C)
R1
R2
R3
R4
R5
217
MAX 260C
60 sec to 90 sec
Above 217 C
P1
HEAT
UP
P2
SOLDER PASTE DRY
P3
SOLDER
REFLOW
P4
COOL DOWN
Process Zone
Symbol
DT
Maximum
DT/Dtime
or Duration
Heat Up
P1, R1
25°C to 150°C
°C/s
Solder Paste Dry
P2, R2
150°C to 200°C
100s to 180s
Solder Reflow
P, R
P, R4
200°C to 260°C
260°C to 200°C
°C/s
-6°C/s
Cool Down
P4, R5
200°C to 25°C
-6°C/s
Time maintained above liquidus point , 217°C
> 217°C
60s to 90s
Peak Temperature
260°C
-
Time within 5°C of actual Peak Temperature
-
20s to 40s
Time 25°C to Peak Temperature
25°C to 260°C
8mins
The reflow profile is a straight-line representation of a nominal temperature profile for a convective reflow solder
process. The temperature profile is divided into four process zones, each with different
DT/Dtime temperature change
rates or duration. The
DT/Dtime rates or duration are detailed in the above table. The temperatures are measured at
the component to printed circuit board connections.
In process zone P1, the PC board and component pins are heated to a temperature of 150°C to activate the flux in the
solder paste. The temperature ramp up rate, R1, is limited to 3°C per second to allow for even heating of both the PC
board and component pins.
Process zone P2 should be of sufficient time duration (100 to 180 seconds) to dry the solder paste. The temperature is
raised to a level just below the liquidus point of the solder.
Process zone P3 is the solder reflow zone. In zone P3, the temperature is quickly raised above the liquidus point of
solder to 260°C (500°F) for optimum results. The dwell time above the liquidus point of solder should be between 60
and 90 seconds. This is to assure proper coalescing of the solder paste into liquid solder and the formation of good
solder connections. Beyond the recommended dwell time the intermetallic growth within the solder connections
becomes excessive, resulting in the formation of weak and unreliable connections. The temperature is then rapidly
reduced to a point below the solidus temperature of the solder to allow the solder within the connections to freeze
solid.
Process zone P4 is the cool down after solder freeze. The cool down rate, R5, from the liquidus point of the solder
to 25°C (77°F) should not exceed 6°C per second maximum. This limitation is necessary to allow the PC board and
component pins to change dimensions evenly, putting minimal stresses on the component.
It is recommended to perform reflow soldering no more than twice.
Recommended Reflow Profile
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ASE2-FREQ-L-H | CRYSTAL OSCILLATOR, CLOCK, 0.625 MHz - 166 MHz, CMOS/TTL OUTPUT |
| ASE2-FREQ-L-R-T | CRYSTAL OSCILLATOR, CLOCK, 0.625 MHz - 166 MHz, CMOS/TTL OUTPUT |
| ASE3-0.625MHZ-B-T | CRYSTAL OSCILLATOR, CLOCK, 0.625 MHz, CMOS OUTPUT |
| ASE3-0.625MHZ-N-R-T | CRYSTAL OSCILLATOR, CLOCK, 0.625 MHz, CMOS OUTPUT |
| ASE3-133MHZ-I-J-T | CRYSTAL OSCILLATOR, CLOCK, 133 MHz, CMOS OUTPUT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ASDL-5270 | 制造商:AVAGO 制造商全稱:AVAGO TECHNOLOGIES LIMITED 功能描述:High-Performance Photodiode in T-1 Package |
| ASDL-5270-D22 | 功能描述:光電二極管 PIN Photodiode 60 Degrees RoHS:否 制造商:Vishay Semiconductors 產(chǎn)品:Photodiodes 反向電壓:10 V 最大暗電流:30 nA 峰值波長:565 nm 上升時間:3.1 us 下降時間:3 us 半強度角度:50 deg 封裝 / 箱體:TO-5 |
| ASDL-5270-D31 | 功能描述:光電二極管 PIN Photodiode 60 Degrees RoHS:否 制造商:Vishay Semiconductors 產(chǎn)品:Photodiodes 反向電壓:10 V 最大暗電流:30 nA 峰值波長:565 nm 上升時間:3.1 us 下降時間:3 us 半強度角度:50 deg 封裝 / 箱體:TO-5 |
| ASDL-5770 | 制造商:AVAGO 制造商全稱:AVAGO TECHNOLOGIES LIMITED 功能描述:High Performance Photodiode in Side Look Package |
| ASDL-5770-D22 | 功能描述:光電二極管 PDiode Side 70deg Blue 4K TnR RoHS:否 制造商:Vishay Semiconductors 產(chǎn)品:Photodiodes 反向電壓:10 V 最大暗電流:30 nA 峰值波長:565 nm 上升時間:3.1 us 下降時間:3 us 半強度角度:50 deg 封裝 / 箱體:TO-5 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。